On florida's beaches, what plant plays a vital role in the development of sand dunes? sea grapes beach sunflower sea oats saw palmetto

Answer - sea oats

Sea oats play a vital role in the development of sand dunes. The structure of their leaves and roots help in the trapping of the wind blown sand, promoting the growth of sand dunes and their stabilization. Sea oat plantation is encouraged in coastal areas to protect damage from heavy winds and high tide.